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4954-07-8

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4954-07-8 Usage

Chemical Properties

Yellow Solid

Uses

Different sources of media describe the Uses of 4954-07-8 differently. You can refer to the following data:
1. A steroid used in the preparation of Cyproterone acetate (C989100) impurities.
2. 3,17-Dihydroxy-pregna-3,5-dien-20-one Diacetate is a steroid used in the preparation of Cyproterone acetate.

Check Digit Verification of cas no

The CAS Registry Mumber 4954-07-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,5 and 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4954-07:
(6*4)+(5*9)+(4*5)+(3*4)+(2*0)+(1*7)=108
108 % 10 = 8
So 4954-07-8 is a valid CAS Registry Number.

4954-07-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name [(8R,9S,10R,13S,14S,17R)-17-acetyl-17-acetyloxy-10,13-dimethyl-1,2,7,8,9,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-yl] acetate

1.2 Other means of identification

Product number -
Other names Pregna-3,5-dien-20-one,3,17-dihydroxy-,diacetate (6CI,7CI,8CI)

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4954-07-8 SDS

4954-07-8Relevant articles and documents

Synthesis of [3α-3H] 17α-Hydroxy pregnenolone and [3α-3H] Pregnenolone

Tian, Yuan,Hong, Yang,Bonacorsi, Samuel J.,Balog, Aaron,Gong, Sharon

, p. 1 - 11 (2014)

For the first time, [3α-3H] 17α-hydroxy pregnenolone (1) was synthesized through a multiple step sequence. The presence of [3β-3H] isomer in RP-HPLC purified product was identified by tritium NMR. The [3β-3H] isomer was then separated from [3α-3H] 17α-hydroxy pregnenolone with chiralPAK AD-H column. [3α-3H] pregnenolone (2) was synthesized from commercial available 5-pregnen-3,20-dione in one step with an improved procedure. [3α-3H] 17α-hydroxy pregnenolone (1) was synthesized through a multiple step sequence. The presence of [3β- 3H] isomer was identified then separated with chiralPAK AD-H column. [3α-3H] pregnenolone (2) was synthesized from commercial available 5-pregnen-3,20-dione in one step. Copyright

Microwave induced selective enolization of steroidal ketones and efficient acetylation of sterols in semisolid state

Marwah, Padma,Marwah, Ashok,Lardy, Henry A.

, p. 2273 - 2287 (2007/10/03)

Under microwave irradiation steroidal enones, more specifically, position three carbonyls were efficiently and selectively converted to the corresponding enol acetates in the presence of additional enolizable carbonyl functions at other positions, using acetic anhydride and a catalytic amount of toluene-p-sulfonic acid. Acetylation of hydroxyl groups of the sterols, including those at the hindered positions, was near quantitative. Strictly anhydrous conditions were not a pre-requisite for acetylation and the reaction system easily tolerated up to 10% (v/v) moisture.

Site-Selective Fluorination of Organic Compounds Using 1-Alkyl-4-fluoro-1,4-diazabicyclooctane Salts (Selectfluor Reagents)

Lal, G. Sankar

, p. 2791 - 2796 (2007/10/02)

The new "N-F"-type electrophilic reagent family of 1-alkyl-4-fluoro-1,4-diazabicyclooctane salts (derived from elemental fluorine (F2) and 1-alkyl-1,4-diazabicyclooctane salts) has been found to be very effective for the fluorination of a wide variety of organic substrates.These include steroidal enol acetates and silyl enol ethers, phenyl-substituted olefins, sulfides bearing α-H atoms, certain carbanions, and mildly activated aromatic compounds.The products were obtained with good yields and regioselectivity under very mild reaction conditions.

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